Seroatlas · Human Serome Atlas

ZIC4

Zinc finger protein ZIC 4

Also known as: ZIC4_HUMAN

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q8N9L1
Gene
ZIC4
Ensembl
ENSG00000174963
Chromosome
3
Canonical length
334 aa
Protein class
Human disease related genes, Predicted intracellular proteins, Transcription factors
Subcellular location
Nucleoplasm,Cytosol

OverviewNCBI Gene

This gene encodes a member of the ZIC family of C2H2-type zinc finger proteins. Members of this family are important during development, and have been associated with X-linked visceral heterotaxy and holoprosencephaly type 5. This gene is closely linked to the gene encoding zinc finger protein of the cerebellum 1, a related family member on chromosome 3. Heterozygous deletion of these linked genes is involved in Dandy-Walker malformation, which is a congenital cerebellar malformation. Multiple transcript variants have been identified for this gene. [provided by RefSeq, Dec 2009]

Canonical amino-acid sequenceUniProt

334 residues, UniProt reviewed canonical sequence.

>Q8N9L1|ZIC4
     1  MRYKTSLVMR KRLRLYRNTL KESSSSSGHH GPQLTAASSP SVFPGLHEEP PQASPSRPLN
    61  GLLRLGLPGD MYARPEPFPP GPAARSDALA AAAALHGYGG MNLTVNLAAP HGPGAFFRYM
   121  RQPIKQELIC KWLAADGTAT PSLCSKTFST MHELVTHVTV EHVGGPEQAN HICFWEECPR
   181  QGKPFKAKYK LVNHIRVHTG EKPFPCPFPG CGKVFARSEN LKIHKRTHTG EKPFRCEFEG
   241  CERRFANSSD RKKHSHVHTS DKPYTCKVRG CDKCYTHPSS LRKHMKVHGR SPPPSSGYDS
   301  ATPSALVSPS SDCGHKSQVA SSAAVAARTA DLSE

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against ZIC4 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Intracellular
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.53
Highest tissue expression
92 nTPM

Expression across tissuesHPA

Tissue

  • cerebellum: 92 nTPM
  • retina: 4.5 nTPM
  • choroid plexus: 2.7 nTPM
  • cerebral cortex: 2.2 nTPM
  • spinal cord: 2.2 nTPM
  • hypothalamus: 1.8 nTPM

Single-cell type

  • bergmann glia: 75 nCPM
  • brain excitatory neurons: 44 nCPM
  • ependymal cells: 20 nCPM
  • late spermatids: 19 nCPM
  • myonuclei: 19 nCPM
  • choroid plexus epithelial cells: 16 nCPM

Immune cell

  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM
  • MAIT T-cell: 0 nTPM

Brain region

  • cerebellum: 154 nTPM
  • white matter: 41 nTPM
  • medulla oblongata: 34 nTPM
  • thalamus: 32 nTPM
  • pons: 30 nTPM
  • basal ganglia: 23 nTPM

ReferencesPubMed · IEDB

Publications for ZIC4 from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.

Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
0.87
gnomAD pLI
0
gnomAD missense Z
-0.11
DepMap mean gene effect
0.09
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads ZIC4 as an antibody target. Whether an autoantibody or antibody against ZIC4 could matter depends on whether native ZIC4 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

ZIC4 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label ZIC4 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/ZIC4. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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